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zhangjian

2023-08-05 25fa475f29791e80a2b533f8f52a9459bcce6a96

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var nativeFunctionToString = require('./_function-to-string');
var WeakMap = require('./_global').WeakMap;
 
module.exports = typeof WeakMap === 'function' && /native code/.test(nativeFunctionToString.call(WeakMap));